Affiliations: [a] Department of Electrical and Computer Engineering,
Faculty of Electrical Engineering, West Pomeranian University of Technology,
Szczecin, Poland | Université Laval, Canada | Tohoku University, Japan
Correspondence:
[*]
Corresponding author: Grzegorz Psuj, Department of Electrical
and Computer Engineering, Faculty of Electrical Engineering, West Pomeranian
University of Technology, al. Piastow 17, 70-310 Szczecin, Poland. Tel.: +48 91
449 4727; Fax: +48 91 449 4859; E-mail: [email protected]
Abstract: Different phases which exist in a duplex stainless steel (DSS)
affect mechanical as well as electromagnetic properties. Therefore, an eddy
current (EC) technique can be utilized to detect phases inclusions. In order to
evaluate and identify the amount of deleterious phases it is important to
assess the impact of electromagnetic properties of material on a measuring
signal. This paper presents a study on the influence of DSS properties changes
caused by a sigma (σ) phase on signal measured by an EC transducer. The
results of an analytical and numerical analysis are presented. The analytical
modeling allows to identify the electromagnetic properties and evaluate the
amount of σ phase in the tested material.
Keywords: Duplex stainless steel, sigma phase, electromagnetic properties, eddy current testing, analytical and numerical analysis
